Space-based infrared dim small moving target detection method

A technology of moving targets and detection methods, applied in the fields of instruments, character and pattern recognition, computer parts, etc., can solve the problems of low calculation efficiency, large amount of calculation, difficulty in target detection, etc., to improve the detection effect, enhance the contrast, suppress the The effect of false alarm rate

Pending Publication Date: 2022-04-19
CHINA ACADEMY OF SPACE TECHNOLOGY
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Problems solved by technology

However, in these methods, the multi-frame joint method, 3D matched filter and other methods have a large amount of calculation and low calculation efficiency; the method of projection transformation will lose the signal-to-noise ratio (SNR) of the target signal, which will bring difficulties to the target detection after projection. ; The energy accumulation method can obtain the trajectory information of the target, but it is difficult to obtain the trajectory information of a weak target in a single frame; the time domain profile method realizes the spectral change caused by the target in the time domain when passing through the current frame, but it is difficult for the moving target The feature extraction is not significant enough, and the extraction effect is not ideal enough

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  • Space-based infrared dim small moving target detection method
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  • Space-based infrared dim small moving target detection method

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[0054] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that are used in the embodiments. Apparently, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.

[0055] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, and the embodiments cannot be repeated here one by one, but the embodiments of the present invention are not therefore limited to the following embodiments.

[0056] In this embodiment, the space-based infrared dim and small moving target detection method combined with time-domain features and Tophat filtering, in order to solve the problem that the target features are not obvious in the space-based infrared image, and t...

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Abstract

The invention relates to a space-based infrared dim small moving target detection method in the technical field of space-based remote sensing data processing, and the method comprises the steps: S1, carrying out the preprocessing of infrared remote sensing data, increasing the contrast ratio of a target to a background, and forming an infrared image sequence; s3, extracting a motion area of the target by using the time domain feature of the target; s5, identifying and extracting potential target points in a spatial domain based on a Topat background modeling method; and S7, performing joint processing on the features of the target in the time domain and the spatial domain to realize target identification. By means of the method, the false alarm rate of target detection of a traditional method is effectively restrained, and the detection effect on the moving dark weak small target is improved.

Description

technical field [0001] The invention relates to the technical field of space-based remote sensing data processing, and mainly relates to a space-based infrared dim small moving target detection method, in particular to a space-based infrared dim small moving target detection method combined with time-domain features and Tophat filtering. Background technique [0002] Space-based detection methods mainly include optical, infrared, radar, etc. Optical detection is susceptible to interference from clouds, fog and other weather, while radar needs to actively transmit and receive electromagnetic waves. Infrared detection is a kind of passive optical detection, which is not restricted by meteorological conditions. It has the advantages of wide detection range and long detection distance. It is widely used in fire warning, temperature / moisture inversion, target detection and tracking, etc., and is widely used. [0003] Due to the long space-based detection distance, the spatial re...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V20/10G06K9/62G06V10/25G06V10/44G06V10/774
CPCG06F18/214
Inventor 鹿明李峰鲁啸天辛蕾杨雪张南赵纪金
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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